docs: def load_cobra_model(self, model):
          """Load a COBRApy Model object into the GEM-PRO project.
  
          Args:
              model (Model): COBRApy ``Model`` object
  
          """
          self.model = ModelPro(model)
          for g in self.model.genes:
              if self.genes_dir:
                  g.root_dir = self.genes_dir
              g.protein.pdb_file_type = self.pdb_file_type
          self.genes = self.model.genes
  
          log.info('{}: loaded model'.format(model.id))
          log.info('{}: number of reactions'.format(len(self.model.reactions)))
          log.info('{}: number of reactions linked to a gene'.format(ssbio.core.modelpro.true_num_reactions(self.model)))
          log.info('{}: number of genes (excluding spontaneous)'.format(ssbio.core.modelpro.true_num_genes(self.model,
                                                                                                           custom_spont_id=self.custom_spont_id)))
          log.info('{}: number of metabolites'.format(len(self.model.metabolites)))
          log.warning('IMPORTANT: All Gene objects have been transformed into GenePro '
                      'objects, and will be for any new ones')